对于I/O流中解压中遇到的问题

package com.tangdeqiang.rtbc5;

import java.io.File;
import java.io.FileInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class TestInputZip{

    public static void main(String[] temp){
        
        ZipInputStream zin;
        try{
            zin=new ZipInputStream(new FileInputStream("d:\\hello.zip"));
            ZipEntry entry=zin.getNextEntry();
            while(((entry=zin.getNextEntry())!=null)&&!entry.isDirectory()){
                File file=new File("d:\\"+entry.getName());
                System.out.println(file);
                if(!file.exists()){
                    file.mkdirs();
                    file.createNewFile();
                }
                zin.closeEntry();
                System.out.println(entry.getName()+"解压成功");
            }
            zin.close();
        }catch(Exception e){
            e.printStackTrace();
        }
    }

}